EMR 64316-1/MC, 138-174 Mhz, Compact Internal Duplexer, 40 Watt Quantity in Basket: None Code: 643161MC Price: $350.65 Shipping Weight: 6.00 pounds Quantity: EMR 64316-1/MC, Compact Duplexer 138-174 MHz, Frequency Separation 5 MHz, Power Rating to 40 Watts, 6 Cavities, BNC Female Connectors, 1-3/8" x 6-1/8" x 5-1/2", 3 Pounds. List Price $425.00.